# emonPi2 energy-monitor hardware and CT expansion

Publisher-released native CAD for an open hardware component. Development/legacy designs are included; this is not industrial type approval or construction-ready switchgear.

Canonical page: https://eloragrid.ai/tools/cad-library/equipment/open-hardware-emonpi2
Manufacturer: OpenEnergyMonitor
Entry type: Product family
Part number: Not specified — select exact configuration
Category: Protection & metering
Formats: BRD, SCH
Market discovery: UK / Europe / Global
Access: Direct download
Official source: https://github.com/openenergymonitor/emonpi2
Manufacturer evidence: https://github.com/openenergymonitor/emonpi2
Source checked: 2026-10-14T01:07:32.027997+00:00

Unchanged official originals are available from the site after upload verification. Rights status and original publisher URLs are retained per file; an unconfirmed status is not presented as a licence.
UK/European source discovery. Tags do not establish certification, country availability or suitability of every configuration.
Native project CAD can depend on symbols and footprints in the official repository. Check development status, revision, EMC and applicable product approvals before hardware use.


## Official files

- emonPi_v2.0.0_CT_ext.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/CT_ext/emonPi_v2.0.0_CT_ext.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-76bdf63de320
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/CT_ext/emonPi_v2.0.0_CT_ext.brd; acquired: true; redistribution: permitted; SHA-256: beab4035207717acfbabf669947ceb8a9883d23d8dbbfcd95619716015d0888c; revision: cd3fd55c51e7
- emonPi_v2.0.0_CT_ext.sch (SCH): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/CT_ext/emonPi_v2.0.0_CT_ext.sch
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-38b5b95e97d9
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/CT_ext/emonPi_v2.0.0_CT_ext.sch; acquired: true; redistribution: permitted; SHA-256: 96f08985b681b855c74d0a87bec345868045951d60a06590be10e5dde8797560; revision: cd3fd55c51e7
- fascias_v2.0.0.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev1/fascias_v2.0.0.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-f132d8a7628b
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev1/fascias_v2.0.0.brd; acquired: true; redistribution: permitted; SHA-256: 2d05220e69f94e8cb7f7f2f175b0719943ec2bdcdb71093acc281fc29a77d21e; revision: cd3fd55c51e7
- fascias_v2.0.1.zig1.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev1/fascias_v2.0.1.zig1.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-8eb3e71ff40b
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev1/fascias_v2.0.1.zig1.brd; acquired: true; redistribution: permitted; SHA-256: 2987dac972fd1e14fc78b2a688b6a070bfb656b42186f4fe34199bc6e2cf4c1d; revision: cd3fd55c51e7
- fascias_v2.1.0.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev1/fascias_v2.1.0.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-bce111eda100
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev1/fascias_v2.1.0.brd; acquired: true; redistribution: permitted; SHA-256: a0f24227141640c1c69cf823e65831d0eaf2607bbcff26a976cec4af936b30ea; revision: cd3fd55c51e7
- fascias_v2.1.0_dxf_prepare_r2.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev1/fascias_v2.1.0_dxf_prepare_r2.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-55913daac666
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev1/fascias_v2.1.0_dxf_prepare_r2.brd; acquired: true; redistribution: permitted; SHA-256: 93c0cb6145310df84c842e415ec48aa10fe1c0f0df9e610d1a21a04ca73baf89; revision: cd3fd55c51e7
- back.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev2/back.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-caeb77ed7959
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev2/back.brd; acquired: true; redistribution: permitted; SHA-256: c130b2b1f84058e9786b847d616286039d6f73e1c4ebb4007e36f0573c0f6473; revision: cd3fd55c51e7
- bottom.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev2/bottom.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-52e39cb36670
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev2/bottom.brd; acquired: true; redistribution: permitted; SHA-256: 8e6313045c0a09d7aa36746962f652a82cceef8083355bce50b18958a49d52c0; revision: cd3fd55c51e7
- frontA.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev2/frontA.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-7ee045812d27
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev2/frontA.brd; acquired: true; redistribution: permitted; SHA-256: 0d59aef02573d28ba60fffc763b5a83f5d1197ada220d7b7ea78e2d981016563; revision: cd3fd55c51e7
- frontB.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev2/frontB.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-3bc401c4e040
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev2/frontB.brd; acquired: true; redistribution: permitted; SHA-256: 1df375865224cf3e365bef9b69fb4a8638d19e4ff44edcf58310cfa701207550; revision: cd3fd55c51e7
- top.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/fascias/rev2/top.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-681cedd81659
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/fascias/rev2/top.brd; acquired: true; redistribution: permitted; SHA-256: 70b60c2432607d9956b821403da45d36fc067c099254a34f0ef13fd93586bcaf; revision: cd3fd55c51e7
- emonPi_v2.0.0.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/v2.0.0/emonPi_v2.0.0.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-33bbefbcf45a
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/v2.0.0/emonPi_v2.0.0.brd; acquired: true; redistribution: permitted; SHA-256: 86213cd0f72d90c105b1aaecc7c7a6dbce226d52f0ff1ec64e27007d355ff761; revision: cd3fd55c51e7
- emonPi_v2.0.0.sch (SCH): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/v2.0.0/emonPi_v2.0.0.sch
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-11f624a66f83
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/v2.0.0/emonPi_v2.0.0.sch; acquired: true; redistribution: permitted; SHA-256: 534650d64cf0a8a22cfe14b398cc5687b722b17d1f20a15120bc8407850678ba; revision: cd3fd55c51e7
- emonPi_v2.0.1.brd (BRD): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/v2.0.1/emonPi_v2.0.1.brd
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-48ac1345c269
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/v2.0.1/emonPi_v2.0.1.brd; acquired: true; redistribution: permitted; SHA-256: 3b6da360eaf57fc3dd55fa92fc94d5a9824ce84e5fec089dbe659c0dba12a32d; revision: cd3fd55c51e7
- emonPi_v2.0.1.sch (SCH): https://raw.githubusercontent.com/openenergymonitor/emonpi2/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/hardware/v2.0.1/emonPi_v2.0.1.sch
  Site download: https://eloragrid.ai/tools/cad-library/download/open-hardware-emonpi2/open-hardware-emonpi2-e6eb51843beb
  Licence: CC-BY-SA-3.0 (https://github.com/openenergymonitor/emonpi2/blob/cd3fd55c51e7b5f0bf3f0e6c802f00b7c4f960e6/README.md); attribution: OpenEnergyMonitor contributors; Unmodified publisher CAD. Retain attribution, notices and the applicable share-alike or reciprocal licence. Source files and source location remain available from the official repository.
  Hosting basis: explicit-license; publisher attribution: OpenEnergyMonitor contributors; reviewed: 2026-10-14T02:47:39.871680+00:00
  Purpose: hardware/v2.0.1/emonPi_v2.0.1.sch; acquired: true; redistribution: permitted; SHA-256: b83ca7de0e12d9ed1143f3ac5c9ce0a9068ca6c7989654802113e75285ccdb4b; revision: cd3fd55c51e7

Global discovery is not proof of regional certification. Confirm exact configuration, revision, dimensional units and use rights with the manufacturer.